July 2001
- [TECH] Open Source oodb/object persistence toolkit library alpha release Brian Price
- In-game email (was On socialization and convenience) Gavin Doughtie
- In-game email (was On socialization and conveni ence) Freeman, Jeff
- In-game email (was On socialization and convenience) Caliban Tiresias Darklock
- TECH DGN: Single user MOB arena Trevyn
- TECH: CRPGs vs. RPGs, Way Back When... Michael Tresca
- TECH: CRPGs vs. RPGs, Way Back When... Matt Owen
- TECH: CRPGs vs. RPGs, Way Back When... J C Lawrence
- TECH: CRPGs vs. RPGs, Way Back When... Michael Tresca
- (no subject) Alan Unsworth
- (no subject) Edward Falconer
- (no subject) J C Lawrence
- (no subject) Bruce Mitchener
- (no subject) Travis Casey
- (no subject) J C Lawrence
- (no subject) Travis Casey
- Libs for 3D Client/Servers Brian Hook
- Libs for 3D Client/Servers Freeman, Jeff
- Libs for 3D Client/Servers Trump
- Libs for 3D Client/Servers Jeremy Noetzelman
- Libs for 3D Client/Servers J C Lawrence
- Libs for 3D Client/Servers Matt Mihaly
- Libs for 3D Client/Servers Matt Owen
- Libs for 3D Client/Servers Jeremy Noetzelman
- Libs for 3D Client/Servers Bryce Harrington
- Libs for 3D Client/Servers J C Lawrence
- Libs for 3D Client/Servers Brian Hook
- Libs for 3D Client/Servers J C Lawrence
- Libs for 3D Client/Servers Brian Hook
- Libs for 3D Client/Servers J C Lawrence
- Libs for 3D Client/Servers Vincent Archer
- Libs for 3D Client/Servers Madman Across the Water
- Libs for 3D Client/Servers Richard Aihoshi aka Jonric
- Libs for 3D Client/Servers Brian Hook
- Libs for 3D Client/Servers J Todd Coleman
- Libs for 3D Client/Servers Brian Hook
- Libs for 3D Client/Servers Sean Kelly
- Libs for 3D Client/Servers Jon Lambert
- Libs for 3D Client/Servers Sean Kelly
- Libs for 3D Client/Servers Bruce Mitchener
- Libs for 3D Client/Servers Sean Kelly
- Libs for 3D Client/Servers Dave Rickey
- Libs for 3D Client/Servers Travis Casey
- Libs for 3D Client/Servers Bryce Harrington
- Libs for 3D Client/Servers Alistair Milne
- Libs for 3D Client/Servers Travis Casey
- Libs for 3D Client/Servers J C Lawrence
- Libs for 3D Client/Servers Travis Casey
- Libs for 3D Client/Servers Jon Lambert
- Libs for 3D Client/Servers Adam Martin
- Libs for 3D Client/Servers Vincent Archer
- Libs for 3D Client/Servers Travis Nixon
- Libs for 3D Client/Servers Adam Martin
- Libs for 3D Client/Servers Vincent Archer
- Libs for 3D Client/Servers Adam Martin
- Libs for 3D Client/Servers Vincent Archer
- Libs for 3D Client/Servers Adam Martin
- Libs for 3D Client/Servers Dave Rickey
- Libs for 3D Client/Servers Travis Casey
- Libs for 3D Client/Servers Dave Rickey
- Libs for 3D Client/Servers Timothy Dang
- Libs for 3D Client/Servers Alistair Milne
- Libs for 3D Client/Servers J C Lawrence
- Libs for 3D Client/Servers Brian Hook
- Libs for 3D Client/Servers Sean Kelly
- Libs for 3D Client/Servers Gavin Doughtie
- Libs for 3D Client/Servers J C Lawrence
- Libs for 3D Client/Servers Brian Hook
- Libs for 3D Client/Servers Daniel.Harman@barclayscapital.com
- Libs for 3D Client/Servers Joel Chestnutt
- Libs for 3D Client/Servers Richard Aihoshi aka Jonric
- Libs for 3D Client/Servers Aaron Mulder
- Libs for 3D Client/Servers Max Gilead
- Libs for 3D Client/Servers Jon Lambert
- Libs for 3D Client/Servers Caliban Tiresias Darklock
- Libs for 3D Client/Servers Luke Carruthers
- Libs for 3D Client/Servers Jeremy Noetzelman
- Libs for 3D Client/Servers J C Lawrence
- Libs for 3D Client/Servers Jeremy Noetzelman
- Libs for 3D Client/Servers Adam Martin
- New polls claw@kanga.nu
- virtual mind project Phillip Lenhardt
- [TECH] Data-transfer protocols for MUDs Adam Martin
- Chatbot Michael Tresca
- GPL (was:Libs for 3D Client/Servers) Joackim Birgersson
- GPL (was:Libs for 3D Client/Servers) Travis Casey
- GPL (was:Libs for 3D Client/Servers) ghovs
- GPL (was:Libs for 3D Client/Servers) Vincent Archer
- GPL (was:Libs for 3D Client/Servers) Max Gilead
- GPL (was:Libs for 3D Client/Servers) Bobby Martin
- GPL (was:Libs for 3D Client/Servers) Joackim Birgersson
- GPL (was:Libs for 3D Client/Servers) Patrick Dughi
- GPL (was:Libs for 3D Client/Servers) Matt Mihaly
- GPL (was:Libs for 3D Client/Servers) Koster, Raph
- GPL (was:Libs for 3D Client/Servers) Joackim Birgersson
- Graphical Mud-in-a-box musings Brian Hook
- Graphical Mud-in-a-box musings Justin Rogers
- Graphical Mud-in-a-box musings Rob Bartel
- Graphical Mud-in-a-box musings Adam Martin
- Chatbot, NLP and explaining away NPC limitations Erin Mulder
- Server hosting Brian Hook
- Server hosting Corey Crawford
- Server hosting Daniel.Harman@barclayscapital.com
- Server hosting Valerio Santinelli
- Server hosting Madman Across the Water
- Server hosting Frank Crowell
- Server hosting Alistair Milne
- Server hosting Brian Hook
- Server hosting Freeman, Jeff
- Server hosting Matt Mihaly
- Server hosting fred@clift.org
- Chatbot, NLP and explaining away NPC limitations Robert Zubek
- Edged weapon damage John W Pierce
- Player characters as a prey species Jon Leonard
- Player characters as a prey species Justin Rogers
- Player characters as a prey species Ling Lo
- Player characters as a prey species J C Lawrence
- Player characters as a prey species lhulbert@hotmail.com
- Player characters as a prey species Dan Shiovitz
- Player characters as a prey species Justin Rogers
- Player characters as a prey species Matt Mihaly
- Request to mailing list MUD-Dev rejected J C Lawrence
- Chatting in MMPORPGs Peter Tyson
- Chatting in MMPORPGs Derek Licciardi
- Chatting in MMPORPGs Matt Mihaly
- Chatting in MMPORPGs Peter Tyson
- Chatting in MMPORPGs Eric Lee {RAT}
- Chatting in MMPORPGs John Buehler
- Chatting in MMPORPGs lhulbert@hotmail.com
- Chatting in MMPORPGs Adam Martin
- Chatting in MMPORPGs Eli Stevens
- Chatting in MMPORPGs Dave Rickey
- Chatting in MMPORPGs Vincent Archer
- Chatting in MMPORPGs Adam Martin
- Chatting in MMPORPGs Kevin Littlejohn
- Chatting in MMPORPGs Hans-Henrik Staerfeldt
- Chatting in MMPORPGs Lee Sheldon
- Chatting in MMPORPGs Madman Across the Water
- Chatting in MMPORPGs Peter Tyson
- Chatting in MMPORPGs J C Lawrence
- TECH: Mail (was On socialization and convenience) Chris Jones
- [TECH] String Classes, Memory Management, and Fragmentation Derek Licciardi
- [TECH] String Classes, Memory Management, and Fragmentation Sean Kelly
- [TECH] String Classes, Memory Management, and Fragmentation Justin Rogers
- [TECH] String Classes, Memory Management, and Fragmentation Chris Dern
- [TECH] String Classes, Memory Management, and Fragmentation David Bennett
- [TECH] String Classes, Memory Management, and Fragm entation Daniel.Harman@barclayscapital.com
- [TECH] String Classes, Memory Management, and Fragmentation Kwon Ekstrom
- [TECH] String Classes, Memory Management, and Fragmentation Bruce Mitchener
- [TECH] String Classes, Memory Management, and Fragmentation Adam Martin
- [TECH] String Classes, Memory Management, and Fragm entation Daniel.Harman@barclayscapital.com
- [TECH] String Classes, Memory Management, and Fragmentation Hans-Henrik Staerfeldt
- [TECH] String Classes, Memory Management, and Fragm entation Daniel.Harman@barclayscapital.com
- [TECH] String Classes, Memory Management, and Fragmentation Derek Licciardi
- [TECH] String Classes, Memory Management, and Fragm entation Bruce Mitchener
- Mudpie Matt Mihaly
- strong encryption for authentication Fred Clift
- strong encryption for authentication David Bennett
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Edward Glowacki
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Derek Licciardi
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication shren
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Ben Tolputt
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Edward Glowacki
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Edward Glowacki
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Ben Tolputt
- strong encryption for authentication J C Lawrence
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Vincent Archer
- strong encryption for authentication Fred Clift
- strong encryption for authentication J C Lawrence
- strong encryption for authentication Sean Kelly
- strong encryption for authentication Tamzen Cannoy
- strong encryption for authentication Sean Kelly
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Tamzen Cannoy
- strong encryption for authentication Travis Casey
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Travis Casey
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Travis Casey
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Travis Casey
- strong encryption for authentication Ola Fosheim Grøstad
- strong encryption for authentication Edward Glowacki
- strong encryption for authentication Matt Mihaly
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Freeman, Jeff
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Bruce Mitchener
- strong encryption for authentication Brian Price
- strong encryption for authentication Kevin Littlejohn
- strong encryption for authentication Brian Price
- strong encryption for authentication Kevin Littlejohn
- strong encryption for authentication Fred Clift
- strong encryption for authentication J C Lawrence
- strong encryption for authentication Robert Fleck
- strong encryption for authentication Sean Kelly
- strong encryption for authentication Edward Glowacki
- strong encryption for authentication Fred Clift
- strong encryption for authentication Fred Clift
- strong encryption for authentication J C Lawrence
- strong encryption for authentication Fred Clift
- strong encryption for authentication Caliban Tiresias Darklock
- strong encryption for authentication Daniel.Harman@barclayscapital.com
- strong encryption for authentication J C Lawrence
- strong encryption for authentication Oliver Jowett
- strong encryption for authentication Kwon Ekstrom
- strong encryption for authentication F. Randall Farmer
- strong encryption for authentication Kwon Ekstrom
- strong encryption for authentication J C Lawrence
- strong encryption for authentication Kwon Ekstrom
- strong encryption for authentication J C Lawrence
- strong encryption for authentication Dave Rickey
- strong encryption for authentication Jon Lambert
- strong encryption for authentication Dave Rickey
- strong encryption for authentication J C Lawrence
- Toward a Craftier Dragon Paul Schwanz
- Toward a Craftier Dragon Maximus
- Toward a Craftier Dragon rayzam
- Toward a Craftier Dragon Matt Owen
- Toward a Craftier Dragon Michael Tresca
- Toward a Craftier Dragon Travis Nixon
- Toward a Craftier Dragon Paul Schwanz - Enterprise Services
- Toward a Craftier Dragon Andrew Reisse
- Toward a Craftier Dragon J C Lawrence
- Toward a Craftier Dragon rayzam
- Toward a Craftier Dragon J C Lawrence
- Toward a Craftier Dragon rayzam
- Toward a Craftier Dragon Richard Aihoshi aka Jonric
- Toward a Craftier Dragon Michael Tresca
- Toward a Craftier Dragon John Hopson
- Toward a Craftier Dragon yospe@kanga.nu
- Grief players with ip/dns spoofers Tand'a-ur
- Grief players with ip/dns spoofers Sean Kelly
- Grief players with ip/dns spoofers J C Lawrence
- Grief players with ip/dns spoofers Greg Underwood
- Grief players with ip/dns spoofers Robert Fleck
- Grief players with ip/dns spoofers J C Lawrence
- Grief players with ip/dns spoofers Tand'a-ur
- Grief players with ip/dns spoofers Adam Martin
- Grief players with ip/dns spoofers J C Lawrence
- character transfer in EQ Matt Mihaly
- character transfer in EQ Derek Licciardi
- character transfer in EQ Dave Rickey
- character transfer in EQ Derek Licciardi
- character transfer in EQ S. Patrick Gallaty
- character transfer in EQ Michael Tresca
- DGN: Craftier dragon and players as GMs Mathieu Castelli
- DGN: Craftier dragon and players as GMs Matt Mihaly
- DGN: Craftier dragon and players as GMs Mathieu Castelli
- DGN: Craftier dragon and players as GMs Travis Nixon
- DGN: Craftier dragon and players as GMs Marian Griffith
- Biz/Media Peter Tyson
- To good to be TRUE, in an MMPORPG? David Loeser
- To good to be TRUE, in an MMPORPG? Kwon Ekstrom
- To good to be TRUE, in an MMPORPG? Xuri
- To good to be TRUE, in an MMPORPG? Adam Martin
- To good to be TRUE, in an MMPORPG? Justin Rogers
- To good to be TRUE, in an MMPORPG? David Loeser
- To good to be TRUE, in an MMPORPG? Matt Mihaly
- To good to be TRUE, in an MMPORPG? Matt Mihaly
- To good to be TRUE, in an MMPORPG? Caliban Tiresias Darklock
- To good to be TRUE, in an MMPORPG? luke@rocketship.com
- To good to be TRUE, in an MMPORPG? J C Lawrence
- To good to be TRUE, in an MMPORPG? Freeman, Jeff
- To good to be TRUE, in an MMPORPG? Koster, Raph
- To good to be TRUE, in an MMPORPG? Freeman, Jeff
- To good to be TRUE, in an MMPORPG? Koster, Raph
- To good to be TRUE, in an MMPORPG? Joe Andrieu
- To good to be TRUE, in an MMPORPG? Koster, Raph
- To good to be TRUE, in an MMPORPG? John Hopson
- To good to be TRUE, in an MMPORPG? Steve {Bloo} Daniels
- To good to be TRUE, in an MMPORPG? J C Lawrence
- To good to be TRUE, in an MMPORPG? Travis Casey
- To good to be TRUE, in an MMPORPG? Joe Andrieu
- To good to be TRUE, in an MMPORPG? Dave Rickey
- To good to be TRUE, in an MMPORPG? Marc Bowden
- To good to be TRUE, in an MMPORPG? Sean K
- To good to be TRUE, in an MMPORPG? Freeman, Jeff
- To good to be TRUE, in an MMPORPG? Matt Mihaly
- To good to be TRUE, in an MMPORPG? Koster, Raph
- To good to be TRUE, in an MMPORPG? Dave Rickey
- To good to be TRUE, in an MMPORPG? J C Lawrence
- To good to be TRUE, in an MMPORPG? Michael Tresca
- To good to be TRUE, in an MMPORPG? Trump
- To good to be TRUE, in an MMPORPG? Kristen L. Koster
- To good to be TRUE, in an MMPORPG? Sean Kelly
- To good to be TRUE, in an MMPORPG? Caliban Tiresias Darklock
- [NEWS] New MUD Magazine Derek Snider
- Real-world skills Was: strong encryption for authentication Travis Nixon
- Real-world skills Was: strong encryption for authentication Hans-Henrik Staerfeldt
- Something in the water Koster, Raph
- Something in the water Dave Rickey
- Something in the water Koster, Raph
- Something in the water John Hopson
- Something in the water Caliban Tiresias Darklock
- Something in the water J C Lawrence
- Something in the water Sean Kelly
- Something in the water rayzam
- Something in the water J C Lawrence
- Something in the water Caliban Tiresias Darklock
- Something in the water J C Lawrence
- Something in the water Caliban Tiresias Darklock
- Something in the water J C Lawrence
- Something in the water Travis Casey
- Something in the water J C Lawrence
- Something in the water Caliban Tiresias Darklock
- Something in the water J C Lawrence
- Something in the water Joe Andrieu
- Something in the water Sean Kelly
- Something in the water Caliban Tiresias Darklock
- Something in the water Hulbert, Leland
- Something in the water Caliban Tiresias Darklock
- Something in the water Hulbert, Leland
- Something in the water Matt Mihaly
- Something in the water Jon Morrow
- Something in the water Trump
- Something in the water Matt Mihaly
- Something in the water Matt Chatterley
- Something in the water Sparrowhawk
- Something in the water Matt Mihaly
- Something in the water Ola Fosheim Grøstad
- Something in the water Tamzen Cannoy
- Something in the water Matt Mihaly
- Something in the water Tomas Clark
- Something in the water Matt Mihaly
- Something in the water Marc Bowden
- Something in the water Koster, Raph
- Something in the water Jessica Mulligan
- Something in the water SavantKnowsAll@cs.com
- Something in the water Miroslav Silovic
- Something in the water Travis Casey
- Something in the water rayzam
- Something in the water Travis Casey
- Something in the water Ian Hess
- Something in the water Marc Bowden
- Something in the water J C Lawrence
- Something in the water Marc Bowden
- Something in the water J C Lawrence
- Something in the water Dave Rickey
- Something in the water Marc Bowden
- Something in the water Travis Casey
- Something in the water Marian Griffith
- Something in the water J C Lawrence
- Something in the water Eli Stevens
- Something in the water J C Lawrence
- Something in the water Adam Martin
- Something in the water Dave Rickey
- Something in the water Dan MacDonald
- Something in the water Adam Martin
- Something in the water John Hopson
- Something in the water rayzam
- Something in the water Caliban Tiresias Darklock
- Gearing up against GEAR Ted Milker
- Gearing up against GEAR Dan MacDonald
- Gearing up against GEAR Sean Kelly
- Gearing up against GEAR Vincent Archer
- Gearing up against GEAR Travis Nixon
- Gearing up against GEAR Kevin Littlejohn
- Gearing up against GEAR Sean Kelly
- Gearing up against GEAR Justin Rogers
- Gearing up against GEAR Sean K
- Gearing up against GEAR Alistair Milne
- Gearing up against GEAR Travis Nixon
- Gearing up against GEAR Vincent Archer
- Gearing up against GEAR J C Lawrence
- Gearing up against GEAR Vincent Archer
- Gearing up against GEAR Daniel.Harman@barclayscapital.com
- Gearing up against GEAR Sean K
- Gearing up against GEAR Vincent Archer
- Gearing up against GEAR Sean K
- Gearing up against GEAR Dave Rickey
- Gearing up against GEAR Derek Licciardi
- Gearing up against GEAR Caliban Tiresias Darklock
- Gearing up against GEAR Marc Bowden
- Gearing up against GEAR J C Lawrence
- Gearing up against GEAR Travis Nixon
- Gearing up against GEAR F. Randall Farmer
- OT: Writer needs help from people in the gaming industry Alex Oren
- What is cheating? [Was: Strong encryption for authentication] Caliban Tiresias Darklock
- TECH DGN: a few mud server design questions (long) Robert Zubek
- TECH DGN: a few mud server design questions (long) Caliban Tiresias Darklock
- TECH DGN: a few mud server design questions (long) Joe Andrieu
- TECH DGN: a few mud server design questions (long) Robert Zubek
- TECH DGN: a few mud server design questions (long) J C Lawrence
- TECH DGN: a few mud server design questions (long) Caliban Tiresias Darklock
- TECH DGN: a few mud server design questions (long) Robert Zubek
- TECH DGN: a few mud server design questions (long) Sean Kelly
- TECH DGN: a few mud server design questions (long) Joe Andrieu
- TECH DGN: a few mud server design questions (long) Sean K
- TECH DGN: a few mud server design questions (long) SeronisROTv3@aol.com
- TECH DGN: a few mud server design questions (long) Joe Andrieu
- TECH DGN: a few mud server design questions (long) J C Lawrence
- TECH DGN: a few mud server design questions (long) Robert Zubek
- TECH DGN: a few mud server design questions (long) Sean Kelly
- TECH DGN: a few mud server design questions (long) Adam Martin
- TECH DGN: a few mud server design questions (long) Caliban Tiresias Darklock
- TECH DGN: a few mud server design questions (long) Jon Lambert
- TECH DGN: a few mud server design questions (long) Robert Zubek
- TECH DGN: a few mud server design questions (long) Kevin Littlejohn
- TECH DGN: a few mud server design questions (long) Robert Zubek
- TECH DGN: a few mud server design questions (long) Robert Zubek
- TECH DGN: a few mud server design questions (long) Caliban Tiresias Darklock
- TECH DGN: a few mud server design questions (long) Robert Zubek
- TECH DGN: a few mud server design questions (long) Robert Zubek
- TECH DGN: a few mud server design questions (long) Caliban Tiresias Darklock
- Real-world skills luke@rocketship.com
- Real-world skills Mathieu Castelli
- Real-world skills J C Lawrence
- Real-world skills Kwon Ekstrom
- Real-world skills rayzam
- Design patterns for game database implementations Caliban Tiresias Darklock
- Design patterns for game database implementations Sean Kelly
- Design patterns for game database implementations J C Lawrence
- Design patterns for game database implementations J C Lawrence
- Real-world skills Caliban Tiresias Darklock
- Real-world skills Chris Lloyd
- Real-world skills Justin Rogers
- Real-world skills Koster, Raph
- Real-world skills Travis Casey
- Real-world skills J C Lawrence
- Real-world skills Luke Parrish
- Real-world skills Dave Talk21
- Real-world skills R.Fry
- Real-world skills Dave Talk21
- Real-world skills Luke Parrish
- Real-world skills Dave Talk21
- Real-world skills Bruce Mitchener
- Real-world skills Ola Fosheim Grøstad
- Mud Clients (was Real-world skills) Kwon Ekstrom
- Mud Clients (was Real-world skills) David Bennett
- Real-world skills Dave Talk21
- Real-world skills Justin Rogers
- Real-world skills Caliban Tiresias Darklock
- Real-world skills J C Lawrence
- Real-world skills Caliban Tiresias Darklock
- Real-world skills J C Lawrence
- Real-world skills Dave Talk21
- Real-world skills Luke Parrish
- Real-world skills Dave Talk21
- Real-world skills Adam Martin
- Players playing NPCs Vladimir Prelovac
- Players playing NPCs Christopher Allen
- Real-world skills Koster, Raph
- Real-world skills Bruce Mitchener
- Real-world skills Andrew Wilson
- Game Survey Michael Tresca
- Game Survey Richard Aihoshi aka Jonric
- Game Survey Hans-Henrik Staerfeldt
- Game Survey J C Lawrence
- MMORPG Construction Kit Koster, Raph
- MMORPG Construction Kit Lee Sheldon
- MMORPG Construction Kit Lee Sheldon
- MMORPG Construction Kit Lee Sheldon
- MMORPG Construction Kit Ola Fosheim Grøstad
- MMORPG Construction Kit J C Lawrence
- MMORPG Construction Kit Brian 'Psychochild' Green
- MMORPG Construction Kit Ola Fosheim Grøstad
- DNA Game Patent [was Randy's Resume] Christopher Allen
- DNA Game Patent [was Randy's Resume] Caliban Tiresias Darklock
- DNA Game Patent [was Randy's Resume] Adam Martin
- DNA Game Patent [was Randy's Resume] Hulbert, Leland
- DNA Game Patent [was Randy's Resume] Chris Gray
- DNA Game Patent [was Randy's Resume] David Loeser
- DNA Game Patent [was Randy's Resume] Dave Rickey
- DNA Game Patent [was Randy's Resume] Jon Lambert
- DNA Game Patent [was Randy's Resume] F. Randall Farmer
- DNA Game Patent [was Randy's Resume] Travis Nixon
- DNA Game Patent [was Randy's Resume] F. Randall Farmer
- DNA Game Patent [was Randy's Resume] Kevin Littlejohn
- DNA Game Patent [was Randy's Resume] Jessica Mulligan
- DNA Game Patent [was Randy's Resume] Caliban Tiresias Darklock
- DNA Game Patent [was Randy's Resume] F. Randall Farmer
- DNA Game Patent [was Randy's Resume] Frank Crowell
- DNA Game Patent [was Randy's Resume] Adam Martin
- DNA Game Patent [was Randy's Resume] F Farmer
- Re[4]: Something in the water Travis Casey
- Population divisions (wasTo good to be TRUE, in an MMPORPG?) Matt Mihaly
- Community feeling (was: To good to be TRUE, in an MMPORPG?) Alex Kay
- Community feeling (was: To good to be TRUE, in an M MPORPG?) Koster, Raph
- Community feeling (was: To good to be TRUE, in an M MPORPG?) J C Lawrence
- Community feeling (was: To good to be TRUE, in an M MPORPG?) Vincent Archer
- Community feeling (was: To good to be TRUE, in an M MPORPG?) Koster, Raph
- Community feeling (was: To good to be TRUE, in an M MPORPG?) Daniel.Harman@barclayscapital.com
- Community feeling (was: To good to be TRUE, in an MMPORPG?) Ola Fosheim Grøstad
- Re:DNA Game Patent [was Randy's Resume] Jessica Mulligan
- Multi-threading ( was: TECH DGN: a few mud server design questions (long)) Jon Lambert
Robert Zubek wrote:
> Sean Kelly writes:
>> Be careful with threads. Often programmers consider the best
>> thing since swiss cheeses without considering the cost involved.
>> It takes a measurable time for the operating system to switch
>> processing between threads. In a pervasively multithreaded
>> program, it's quite possible that you could end up spending as
>> much time switching between threads than you spend processing the
>> threads themselves. Potential design needs aside, the ideal is
>> still one thread per CPU.
> good point. i'm beginning to strongly lean towards a single thread
> of execution for the main engine, and handling temporally extended
> events via some sort of cooperative yielding. (i have a reply to
> the calendar idea in a separate post.) but i think i'll need
> still separate threads for each of the player network interfaces,
> and probably one for each of the smarter NPCs (the ones that
> actually need to communicate with players - the dumb background
> NPCs can be coded up as just objects with an extra bit of
> autonomy).
I simply must leap in here, meep, gibber, and wave my arms about
wildly. :-P
The ideal is NOT "one thread per CPU" no more than the ideal is "one
process per CPU". The ideal is that a CPU should always have a unit
of work available and ready to run. No more than one unit of work
and it should be ripe for the plucking at the exact moment when the
CPU becomes available. Naturally we're always going to fall short
of that ideal. :-)
It should be obvious, but the fundamental concept that transformed
the world from single-tasking operating systems to multi-tasking
operating systems still holds true today. Multi-tasking OS's are
indeed much more efficient than their single-tasking ancestors.
Throughput is the measurement of an interactive server application
like a mud, not CPU usage. Multi-tasking OSs were not merely
designed for the convenience of the shell user. There is no reason
at all to believe that the finer granularity of application
threading is any less important than the larger grain of processes,
and does not further maximizing efficiency and throughput by
insuring there is always something the CPU _could_ be doing instead
of waiting around picking it's virtual belly button. What you want
to maximize is utilization. And that occurs when there are enough
threads to hide latency not cause latency. It's more than 1, and
it's not like you have a real choice in the matter of context
switches anyways if you're running NT, *nix, VMS or OS/390. You
probably run them because they context switch. :-P
The measure of how overloaded a system is the length of the run
queue not the number of threads or processes in the system. Most of
our desktops will rarely hit a run queue length of over 2. Right
now as I'm typing this there are 119 threads running on my system
with an average run queue length of slightly less than 1. CPU is
trivial around 5%. 4% of that the mud BTW.
Now if one designs an application in such a way to attempt to
guarantee that all threads are busy then that design will likely
guarantee the worst possible performance on a single-processor
machine. That's an embarrassingly parallel case. For example,
breaking a CPU bound rendering process into multiple threads is a
classic example where multi-threading on a single CPU is ummm less
than intelligent. Reasonable context switching actually hides
latency. That's really the ideal. Over context switching is the
price one pays for designing an application in such a way as to have
too many CPU bound threads.
IMO a server application requires just as many threads as are
necessary to maximize it's average throughput regardless of whether
it runs in a single processor or multiprocessor environment. That
balance is of course different for each environment thus it should
also be flexible and configurable. Yes I'm certainly itching to
burn 5% more of CPU time if it drops average user response time by a
half second.
I use thread pooling for ALL operations that do I/O whether it be
database or network I/O. It's not one thread per user or one thread
per I/O request, it's a fixed pool of N pre-created threads serving
all the requests for a particular class of I/O. N is of course
something that can be tuned depending where and what I eventually
end up running it on. :-)
"Threads are for people who can't program a state machine" - Alan
Cox
For some reason I always think of Aber. :-P
"Threads are for people who understand how their apps should work
better than the brain dead OS does." - me
--
--* Jon A. Lambert - TychoMUD Email:jlsysinc@ix.netcom.com *--
--* Mud Server Developer's Page <http://tychomud.home.netcom.com> *--
--* If I had known it was harmless, I would have killed it myself.*-- - Wilderness Freeman, Jeff
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